Home / 193,836.71-290,458.31-130,421.95

Finding the Fourth Proportional to 193,836.71, 290,458.31 and 130,421.95

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Solution

The fourth proportional to 193,836.71, 290,458.31 and 130,421.95 is: 195,433.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    193,836.71 : 290,458.31 = 130,421.95 : x
  2. Step 2: Convert to fraction form
    193,836.71/290,458.31 = 130,421.95/x
  3. Step 3: Cross multiply
    193,836.71x = 290,458.31 × 130,421.95
  4. Step 4: Simplify right side
    193,836.71x = 37,882,137,805.65
  5. Step 5: Solve for x
    x = 37,882,137,805.65/193,836.71
  6. Step 6: Final answer
    x = 195,433.25

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.